Harrisville Harbor Boat Launch Air Temperatures
Jan
| High: | 27 F° | (-3 C°) |
| Low: | 10 F° | (-12 C°) |
Feb
| High: | 29 F° | (-1.7 C°) |
| Low: | 11 F° | (-11.7 C°) |
March
| High: | 38 F° | (3.5 C°) |
| Low: | 20 F° | (-6.8 C°) |
April
| High: | 53 F° | (11.4 C°) |
| Low: | 33 F° | (0.4 C°) |
May
| High: | 65 F° | (18.6 C°) |
| Low: | 44 F° | (6.4 C°) |
June
| High: | 75 F° | (23.8 C°) |
| Low: | 53 F° | (11.6 C°) |
July
| High: | 79 F° | (26.2 C°) |
| Low: | 57 F° | (14.1 C°) |
August
| High: | 77 F° | (25.1 C°) |
| Low: | 56 F° | (13.5 C°) |
Sept
| High: | 69 F° | (20.7 C°) |
| Low: | 49 F° | (9.6 C°) |
Oct
| High: | 56 F° | (13.3 C°) |
| Low: | 38 F° | (3.6 C°) |
Nov
| High: | 43 F° | (6.1 C°) |
| Low: | 29 F° | (-1.4 C°) |
Dec
| High: | 32 F° | (-0.1 C°) |
| Low: | 18 F° | (-8 C°) |